Viessmann Vitocal 200-G Series Installation And Service Instructions Manual page 29

Electrical connection
Main PCB (230 V~ function components)
Information regarding the connection values
The specified output is the recommended connected
■
load.
■ Total output of all components connected directly to
the heat pump control unit (e.g. pumps, valves, mes-
sage facilities, contactors): Max. 1000 W
If the total output is < 1000 W, the individual rating of
a component (e.g. pump, valve, message facility,
contactor) can be greater than specified. However,
the breaking capacity of the relevant relay must not
be exceeded.
■ The specified current indicates the max. switching
current of the switching contact. Observe total cur-
rent of 5 A.
Plug
sYA
Terminals Function
211.5 Cooling control via NC-Box
NC NC function (natural cooling)
Plug
sYS
Terminals Function
212.1 Control of active cooling function
AC
212.2 Heating circuit pump for heating cir-
cuit without mixer A1/HC1
A1
212.3 DHW circulation pump
212.4 3-way diverter valve for heating water
buffer cylinder bypass or heat pump
in the case of dual alternative mode
(cont.)
Set the required parameters during commissioning:
See page 55 onwards.
Explanation
Connection values
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
■
Explanation
Components for AC cooling
Supply values
Output: 10 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
■
This pump is connected in addition to the secondary
■
pump if a heating water buffer cylinder is installed.
Connect a temperature limiter in series to restrict the
■
maximum temperature of underfloor heating circuit (if
installed).
Note
In systems without heating water buffer cylinder the
temperature limiter is connected to X3.2/X3.14 at the
luster terminals: See chapter "Temperature limiter to re-
strict the maximum temperature of underfloor heating".
Supply values
Output: 100 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
■
Supply values
Output: 50 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
■
Supply values
Output: 130 W
■
Voltage: 230 V~
■
Max. switching current: 4(2) A
■
Installation sequence
29